Answer
Water feed drips
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Problems with Aprilaire 400 Humidifier?
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Questions and Unsolved Support Problems
Answer
Model 400-should filter be wet??don't know if my unit is working??
Answer
My Aprilaire 400 will only work on test mode. Currently connected in auto-mode.
Answer
why doesn't my humidifier work when heat is on only on test mode it is an aprilaire 400
Answer
The mesh screen is not consistantly wet...it's only wet in places... There's enough water running...
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Answer
Unist controller reads 33 but hygrometer through out the house read 25% at 68 degrees. Controller is...
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Answer
Fan goes on but water dose not enter unit
Aprilaire 400 Humidifier Manuals & Guides
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Tips & How To Guides for the Aprilaire 400 Humidifier
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Specifications for Aprilaire 400 Humidifier
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Aprilaire Contact Information
Main support number1(800)334-6011
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